Model MicroCEM

Instruction Manual

748467-A January 2002

SECTION 5

MAINTENANCE AND SERVICE

DANGER.

ELECTRICAL SHOCK HAZARD

Disconnect power to the module(s) prior to replacing components.

WARNING

QUALIFIED PERSONNEL

This equipment should not be adjusted or repaired by anyone except properly qualified service personnel.

WARNING

PARTS INTEGRITY

Tampering with or unauthorized substitution of components may adversely affect safety of this product. Use only factory- approved components for repair.

5-1 OVERVIEW

The MicroCEM Analyzer Module requires very little maintenance during normal operation.

Occasionally, the detector's reaction chamber and sapphire window may require cleaning, refer to Section 5-5.

White crystal deposits on the windows of the reaction chamber and plugging of capillaries and vent are usually due to sample contaminates such as ammonia reacting with the high ozone levels and NO components. To eliminate the contaminates, the sampling system should be reworked or a preventive maintenance program developed (if dropout is not excessive). Another source of crystalline formation is contaminated air.

Several components may require replace- ment. These are discussed in the following sections.

Rosemount Analytical Inc. A Division of Emerson Process Management

Maintenance and Service

5-1